Now showing items 11-20 of 242
THE PETROLOGY AND GEOCHEMISTRY OF HIGH CASCADE VOLCANICS IN SOUTHERN WASHINGTON: MOUNT ST. HELENS VOLCANO AND THE INDIAN HEAVEN BASALT FIELD (TRACE ELEMENT, ISOTOPES, MINERALOGY)
Mount St. Helens volcano (Washington, USA) has been characterized by four eruptive periods during the last 2200 years. Eruptive products include a wide spectrum of rock types including basaltic to andesitic lavas, andesitic ...
Cenozoic inversion structures in a back-arc setting, Western Flores Sea, Indonesia
A geophysical and geological study utilizing high quality seismic and well log data was undertaken of a marginal basin in the Western Flores Sea, Indonesia, to document the evolution of Paleogene extensional basins and ...
Seismic sequence stratigraphy of the Paleozoic of Central Arabia, Hawtah area (Saudi Arabia)
Nine second-order sequences in Central Arabia are in part correlatable with worldwide seismic sequences. Differential uplift and subsidence occurred throughout the Paleozoic and was interrupted by a late Ordovician-early ...
Crustal structure and tectonic evolution: Central California
Vertical incidence and wide angle seismic data suggest the central California transform margin is underlain at depth by a horizontal detachment surface above which strike-slip and compression occur. The boundary between ...